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Formation of 2D bright spatial solitons in lithium niobate with photovoltaic response and incoherent background
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Paper Abstract

The influence of incoherent background illumination produced by light-emitting diodes (LED´s) of different average wavelengths and laser diode emitting in blue region of visible on diffraction characteristics of narrow coherent light beams of He-Ne laser due to refractive index changes of Fe-doped lithium niobate sample are studied. It has been experimentally demonstrated that nonlinear diffraction of red beams with wavelength 633 nm and diameters on full width of half maximum (FWHM) near to 15 μm may be totally compensated using background light with average wavelengths 450 – 465 nm. To provide the necessary intensity of incoherent background, the combinations of spherical and cylindrical concave lenses with blue LED and laser diode module without focusing its beam have been used.

Paper Details

Date Published: 1 December 2017
PDF: 6 pages
Proc. SPIE 10603, Photonics, Devices, and Systems VII, 106030T (1 December 2017); doi: 10.1117/12.2292322
Show Author Affiliations
A. Pustozerov, Tomsk State Univ. of Control Systems and Radioelectronics (Russian Federation)
V. Shandarov, Tomsk State Univ. of Control Systems and Radioelectronics (Russian Federation)


Published in SPIE Proceedings Vol. 10603:
Photonics, Devices, and Systems VII
Karel Fliegel; Petr Páta, Editor(s)

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